Hydraulic power transmitter



Dem 18, 1934.

Filed May 13, 1933 2 Sheets-Sheet 1 Dec. 18,1934. QCAMPBELL 1,985,146

1 HYDRAULIC POWER RANSMITTER Y Filed May 13, 1933 2 Sheets-Sheet 2 frwn r 65 mechanism.

patented Dec. 18,l934 t I t 1,985,146

UNITED STATES PATIENT OFFICE Application May 13, 1933, Serial No. 670,985 In Great Britain May 18, 1932 1 Claim. (c 60-54) This invention relates to improved hydraulic Referring to the drawings, the. transmitter is power transmitters (of the reversible, variable constructed in such a manner that two impellers speed or torque converting type) and has for its A are mounted on a shaft B, being keyed thereobject, inter alia to simplify the'construction to by means of keys 0,, but capable of-sliding 5 anddriving of motor cars and other power drivlongitudinally to oppose the forward blades D or 5 en vehicles by its displacement of such items the reverse blades E of the turbine runners F. of mechanical power transmission as friction The turbine runners F are mounted .on the clutches, V ab e -bo f e W e and driven shafts G, being suitably connected to difiel'ential gears, w ch e generally DO- same, and the driven shafts G are carried on at d in vehi es of this classof c u se, the ball bearings H situated or placed in suitable re- 10.

transmitter is applicable to any machine. sta cesses I formed in the lower section of the east'ionary or mobile, where the conditions of power ing J and the bearing covers K. The shaft B transmission are similar to those of the aforeis carried on ball bearings L situated or placed, enti ed Vehicl sat the ends of shaft B in suitable recesses M is According to this invention, I employ two imformedin the hubs of the driven shafts G, and n ll m unt d n a shaft, wh ch s nn t d at any intermediate point or points as may be through a suitable right-angle gear drive to th required,-along its length in a suitable recess. or v n u t p er being apable of slidrecesses N formed in the lower section of the casins tud na y n the s aft; and w turins J and the bearing cover or covers 0. Se-

bine runners av o w d d rev se blad s, cured to the shaft B at a point between the im- 20 each driven p y-by an impeller and pellers A is a bevel-wheel, worm-wheelor other a a d n su a mann r that, by suita y psuitable gear-wheel P, which is driven by a suitcrating the impellers, they may be brought in able pinion or worm Q mounted on the shaft R, l to pp e orw d o reve e blades of which in turn is connected to the shaft of the the p e turb ne e tu b e driving unit (not shown). The spindle R is car- 25 runners are suitably connected to the driven ried on ball bearings s situated or placed in suitshafts. j able recesses '1 formed in the lower section of The con mechanism Sliding the p the casing J and the bearing cover U. l s may be s an d that the imp l rs a Collars v, with which the impeller operating Ways Slide in oppo in dire ions ivin p l forks W engage are carried on ball bearings X 30 Wo of the transmitter, s the driven at the ends of the central bosses of the impellers shafts both rotate in the same direction. i. e., A. Thespindles Y on which the operating forks both forward or both reve ehe co t o W are fixed are housed and rotate in the casing mechanism, however, may be arranged if desired J. andthe impellersA may be operated individto iv ind p d nt slidin mov m nt of th imually bysuch spindles Y; or the impellers may 5 pellers'and consequently any direction of rotabe operated in parallel through a mechanism tion of the driven shafts. I v such as shown in Figure 4 where Z is the operat- The whole is or may be enclosed within a casing spindle carrying a. double crank A which ing split into two sections and suitably connectconnects to the levers B on the spindles Y 40 ed or jointed on a plane which passes through through the links C Rotation-of the operat- 40 the axis of the shafts, and where the shafts and ing spindle Z would thus cause the impellers A other spindles emergefrom the casing, stumng to slide in opposing directions thus always enboxes are formed and suitable glands and packsuring parallel working of the transmitter. It ings provided. a is to be understood that although I have de- In order that my inventionmay be properly scribed and illustrated one form of control 45 understood and readily carried into eifectI have mechanism there are many others which could hereunto appended two sheets of drawings, 0 be employed and yet come within the scope or which ambit of my invention.

Figure 1 is a sectional elevation of the trans- The whole is or may be enclosed in acasing mitter. J split into two sections and suitably connected 50 Figure '2 is an end view of Figure 1. v or jointed on-aplane which passesthrough the Figure 3 is a section through the vertical cenaxis of the shafts B and G, and wherethe shafts tre line 1--1 of'Flgure 1. Y i Y G and R and spindles Y or Z-emerge from the Figurev 4 illustrates one 'form of control casing stuffing boxes D are formed and suitable glands iii and packings F are provided. 7 f

Any of the parts of the transmitter which are not specifically referred to are described in my prior application for patent No. 664,839

I claim: v I A hydraulic power transmitter comprising a fixed casing having a pair of outer turbine chambers with a connecting chamber to hold said outer chambers in spaced and axial alinement, a driving shaft rotatably mounted in said connecting chamber, an intermediate shaft supported within said chambers and connected to rotate with said driving shaft, a pair of oppositely disposed impellers mounted to rotate and to slide upon the intermediate shaft within the outer chambers, a ring carried by each of said impellers to slide therewith and to permit rotation of the impeller, a pair of pins supported tions, a pair of driven shafts supported in saidflxed casing in alinement with saidintermediate' shaft, and a. disc provided with forward and reverse blades carried upon each of said driven shafts to permit the sliding movement of the impellers into registry with either the forward or -the reverse blades whereby to control th rotation of the driven shafts.

DUNCAN CAMPBELL. 

